beaver

noun

1. pl. beavers or beaver any of a family (Castoridae) of large rodents with soft, brown fur, chisel-like teeth, webbed hind feet, and a flat, broad tail: they often gnaw trees down and build canals and dams to form in which they build dry, dome-shaped, island lodges having underwater entrances
2. its fur
a man's high silk hat, originally made of this fur
a heavy cloth of felted wool, used for overcoats, etc.
☆ Slang the female genitals: often considered vulgar

adjective

☆ Slang designating or of a film, photograph, etc. in which the female genitals are exposed: often considered vulgar

intransitive verb

☆ to work hard, constantly, conscientiously, etc.: usually with away

noun